Continent: |
Europe | Latitude: |
57.70 | deg. |
Country: |
Russia | Longitude: |
28.22 |
deg. |
River: |
Velikaya | Elevation: |
39.6 |
m |
Station: |
Pyatonovo | Area: |
20000.0 |
km2 |
| Mean for Observation Period: | 1930 | - | 1985 | Total months: | 624 |
| - | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| m3/c | 68.9 | 64.7 | 128. | 475. | 204. | 69.5 | 51.2 | 58.2 | 66.9 | 110. | 118. | 102. | 126. |
| mm | 9.23 | 7.90 | 17.2 | 61.6 | 27.3 | 9.01 | 6.86 | 7.80 | 8.67 | 14.7 | 15.3 | 13.7 | 199. |
| km3 | 0.18 | 0.16 | 0.34 | 1.23 | 0.55 | 0.18 | 0.14 | 0.16 | 0.17 | 0.29 | 0.31 | 0.27 | 3.99 |
| l/s/km2 | 3.45 | 3.24 | 6.40 | 23.8 | 10.2 | 3.47 | 2.56 | 2.91 | 3.35 | 5.49 | 5.89 | 5.11 | 6.32 |
| %% | 4.54 | 4.27 | 8.45 | 31.3 | 13.5 | 4.58 | 3.38 | 3.84 | 4.41 | 7.24 | 7.77 | 6.74 | 100. |
Velikaya at Pyatonovo
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
| 1930 | 150. | 123. | 188. | 209. | 66.2 | 37.4 | 86.2 | 370. | 169. | 326. | 407. | 216. | 196. |
| 1931 | 76.0 | 62.2 | 66.3 | 541. | 308. | 60.8 | 31.7 | 40.4 | 73.2 | 93.3 | 161. | 89.4 | 134. |
| 1932 | 72.2 | 72.6 | 43.6 | 443. | 265. | 99.9 | 61.4 | 51.4 | 81.9 | 261. | 232. | 210. | 158. |
| 1933 | 137. | 55.1 | 240. | 247. | 227. | 100. | 48.9 | 29.6 | 74.9 | 97.6 | 120. | 114. | 124. |
| 1934 | - | - | - | - | - | - | - | - | - | 22.7 | 44.1 | 105. | - |
| 1935 | 17.0 | 59.6 | 212. | 351. | 154. | 69.0 | 54.1 | 142. | 195. | 192. | 189. | 67.7 | 142. |
| 1936 | 125. | 116. | 526. | 388. | 119. | 284. | 17.5 | 15.0 | 35.6 | 79.2 | 79.6 | 100. | 157. |
| 1937 | 110. | 66.2 | 220. | 269. | 86.8 | 31.4 | 36.5 | 58.1 | 40.6 | 38.6 | 59.6 | 61.2 | 89.8 |
| 1938 | 29.2 | 58.6 | 543. | 313. | 81.4 | 28.7 | 35.7 | 18.1 | 17.6 | 22.7 | 33.7 | 38.7 | 102. |
| 1939 | 28.0 | 169. | 86.6 | 356. | 102. | 32.5 | 17.4 | 10.0 | 8.66 | 10.7 | 16.5 | 24.4 | 71.8 |
| 1940 | 9.56 | 12.1 | 14.8 | 430. | 101. | 23.9 | 13.1 | 19.0 | 72.4 | 117. | 131. | 103. | 87.2 |
| 1941 | 36.9 | 17.4 | 36.9 | 548. | 482. | - | - | - | - | - | - | - | - |
| 1942 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1943 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1944 | - | - | - | - | - | - | - | - | 35.7 | 39.0 | 72.3 | 93.2 | - |
| 1945 | 27.9 | 19.7 | 60.9 | 612. | 185. | 37.1 | 37.6 | 167. | 142. | 473. | 216. | 60.2 | 170. |
| 1946 | 24.6 | 22.1 | 60.2 | 739. | 174. | 49.9 | 28.2 | 52.2 | 157. | 203. | 83.1 | 36.7 | 136. |
| 1947 | 19.5 | 19.3 | 59.3 | 511. | 125. | 107. | 41.3 | 35.5 | 33.7 | 35.5 | 52.0 | 72.9 | 92.7 |
| 1948 | 62.1 | 82.1 | 69.5 | 613. | 96.0 | 33.8 | 45.3 | 20.0 | 26.6 | 70.8 | 112. | 137. | 114. |
| 1949 | 57.8 | 61.3 | 88.2 | 518. | 173. | 130. | 79.9 | 55.7 | 55.8 | 42.0 | 54.2 | 90.3 | 117. |
| 1950 | 38.3 | 25.2 | 90.3 | 548. | 132. | 66.1 | 79.3 | 59.3 | 80.9 | 144. | 266. | 301. | 153. |
| 1951 | 69.4 | 47.2 | 73.1 | 875. | 122. | 81.4 | 33.2 | 24.1 | 20.7 | 21.3 | 24.0 | 45.9 | 120. |
| 1952 | 31.5 | 37.8 | 24.0 | 269. | 87.7 | 35.1 | 22.0 | 16.0 | 61.5 | 456. | 336. | 116. | 124. |
| 1953 | 93.0 | 49.1 | 85.6 | 788. | 111. | 59.2 | 43.8 | 42.1 | 160. | 185. | 111. | 83.8 | 151. |
| 1954 | 41.2 | 29.4 | 67.8 | 300. | 139. | 35.0 | 19.1 | 33.8 | 48.3 | 96.4 | 144. | 83.2 | 86.4 |
| 1955 | 87.2 | 125. | 52.1 | 351. | 880. | 205. | 61.5 | 36.2 | 37.9 | 48.7 | 57.1 | 58.9 | 167. |
| 1956 | 49.6 | 38.6 | 40.0 | 613. | 865. | 72.7 | 45.2 | 62.4 | 79.0 | 172. | 55.3 | 117. | 184. |
| 1957 | 73.0 | 236. | 146. | 442. | 162. | 78.1 | 68.5 | 167. | 272. | 329. | 166. | 102. | 187. |
| 1958 | 80.2 | 81.1 | 110. | 736. | 451. | 82.2 | 54.6 | 83.5 | 51.2 | 112. | 146. | 97.8 | 174. |
| 1959 | 73.5 | 85.7 | 220. | 589. | 105. | 32.6 | 21.2 | 14.9 | 17.6 | 20.6 | 22.7 | 20.0 | 102. |
| 1960 | 21.6 | 18.1 | 18.7 | 415. | 138. | 39.7 | 176. | 71.2 | 74.7 | 113. | 321. | 300. | 142. |
| 1961 | 111. | 111. | 329. | 235. | 83.6 | 32.5 | 26.3 | 53.4 | 61.0 | 36.0 | 49.7 | 72.6 | 100. |
| 1962 | 64.5 | 53.0 | 40.1 | 668. | 259. | 114. | 191. | 149. | 163. | 160. | 248. | 256. | 197. |
| 1963 | 67.6 | 43.4 | 44.2 | 462. | 224. | 43.4 | 25.3 | 26.4 | 28.8 | 48.1 | 66.0 | 53.0 | 94.3 |
| 1964 | 37.5 | 28.6 | 29.8 | 224. | 115. | 41.4 | 25.1 | 23.2 | 23.3 | 29.4 | 37.9 | 51.6 | 55.6 |
| 1965 | 42.6 | 37.5 | 48.9 | 487. | 225. | 72.2 | 32.7 | 32.8 | 31.4 | 31.4 | 28.3 | 27.9 | 91.5 |
| 1966 | 29.5 | 30.8 | 148. | 818. | 206. | 64.5 | 44.3 | 59.2 | 51.8 | 68.5 | 76.6 | 63.3 | 138. |
| 1967 | 47.4 | 41.9 | 365. | 323. | 165. | 69.1 | 35.5 | 24.6 | 26.5 | 34.7 | 111. | 94.2 | 111. |
| 1968 | 43.3 | 46.4 | 201. | 682. | 173. | 56.3 | 133. | 69.0 | 40.1 | 73.1 | 112. | 95.5 | 144. |
| 1969 | 44.6 | 34.7 | 34.0 | 400. | 221. | 72.2 | 40.6 | 25.6 | 26.5 | 26.0 | 56.3 | 99.1 | 90.0 |
| 1970 | 44.2 | 33.8 | 44.7 | 493. | 290. | 47.8 | 26.2 | 28.9 | 25.8 | 31.5 | 88.2 | 91.1 | 104. |
| 1971 | 81.4 | 111. | 131. | 508. | 105. | 35.9 | 26.7 | 20.0 | 22.6 | 32.1 | 45.4 | 62.8 | 98.5 |
| 1972 | 50.7 | 28.9 | 49.4 | 239. | 126. | 64.3 | 58.7 | 32.3 | 27.1 | 30.2 | 72.4 | 123. | 75.2 |
| 1973 | 45.4 | 40.3 | 81.8 | 242. | 182. | 59.3 | 31.4 | 22.1 | 18.8 | 23.8 | 40.8 | 43.6 | 69.3 |
| 1974 | 43.4 | 51.0 | 110. | 203. | 100. | 103. | 95.4 | 151. | 51.9 | 56.7 | 116. | 130. | 101. |
| 1975 | 195. | 92.7 | 271. | 434. | 143. | 49.1 | 30.4 | 25.5 | 23.6 | 21.9 | 24.4 | 32.3 | 112. |
| 1976 | 42.6 | 29.8 | 44.1 | 325. | 176. | 113. | 62.7 | 30.8 | 29.5 | 23.7 | 42.9 | 63.4 | 82.0 |
| 1977 | 36.8 | 29.2 | 141. | 449. | 118. | 40.8 | 26.4 | 70.2 | 50.2 | 55.3 | 90.2 | 85.5 | 99.4 |
| 1978 | 38.1 | 33.3 | 125. | 639. | 300. | 81.6 | 84.4 | 77.5 | 141. | 422. | 314. | 163. | 202. |
| 1979 | 73.3 | 60.8 | 153. | 675. | 292. | 49.7 | 32.9 | 54.1 | 51.9 | 46.3 | 49.6 | 65.1 | 134. |
| 1980 | 56.2 | 38.1 | 39.1 | 395. | 258. | 54.6 | 49.1 | 59.8 | 133. | 128. | 155. | 140. | 125. |
| 1981 | 176. | 95.5 | 221. | 562. | 154. | 58.4 | 46.2 | 41.3 | 87.7 | 134. | 202. | 126. | 159. |
| 1982 | 95.8 | 99.8 | 245. | 526. | 174. | 98.0 | 85.1 | 38.3 | 53.1 | 124. | 160. | 247. | 162. |
| 1983 | 293. | 285. | 213. | 660. | 175. | 76.0 | 40.5 | 34.2 | 31.6 | 31.9 | 36.5 | 71.5 | 162. |
| 1984 | 139. | 83.9 | 61.4 | 440. | 143. | 68.6 | 43.9 | 31.8 | 40.9 | 74.9 | 87.0 | 64.3 | 107. |
| 1985 | 43.1 | 35.2 | 47.4 | 601. | 263. | 66.2 | 60.3 | 94.4 | 116. | 251. | 220. | 148. | 162. |